PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791864098',
];

$_COOKIE = [
    '_csrf' => '80bd350ab4dea5da94cdadc2f214b44387cf7de8b3b04d76a087759938a4c637a:2:{i:0;s:5:"_csrf";i:1;s:32:"MIsWSb4Ucj_LqEf7OS_QaYnkbwiK9_iu";}',
    'topics-session' => '1791932561.514.16975.128327|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => '560ocvg39bma8ingpngscvfra6',
];

$_SESSION = [
    '__flash' => [],
];